Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Alkali metal
Patent
1990-08-27
1992-04-28
Niebling, John
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Alkali metal
423499, 423475, 423659, 204 95, 23302T, C01D 314, C01B 1112
Patent
active
051087227
ABSTRACT:
Disclosed is a method of removing sulfate ion from an aqueous sodium chlorate liquor. A crystallization temperature is selected between about -15.degree. and about 0.degree. C. and the maximum concentration of sodium chlorate that is soluble in the liquor at that temperature is determined. The liquor is diluted so that the concentration of sodium chlorate in the liquor is less than that miximum concentration and the liquor is cooled to that temperature so that the sulfate ion in the liquor crystallizes as sodium sulfate decahydrate but the sodium chlorate does not crystallize.
REFERENCES:
patent: 4702805 (1987-10-01), Burkell et al.
Seidell, "Solubilities Inorganic and Metal-Organic Compounds," 4th Ed., vol. 2, 1958, p. 985.
Occidental Chemical Corporation, Chlorates brochure, "Hooker Sodium Chlorate Product Information Manual," 1977, p. 36.
Perry et al., Chemical Engineer's Handbook, Fifth Edition, McGraw Hill Book Co., 1973, pp. 17-18 thru 17-11.
In re McCarthy et al., 846F2.d77, Mar. 8, 1988.
Bommaraju Tilak V.
Ruthel Walter W.
Fuerle Richard D.
Gorgos Kathryn
Niebling John
Occidental Chemical Corporation
Tao James F.
LandOfFree
Sulfate removal from chlorate liquor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sulfate removal from chlorate liquor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sulfate removal from chlorate liquor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1247378